private MethodReference GetToNativeMarshaler(ManagedUnrealMarshalerType marshalerType,
EPropertyType typeCode, string typePath,
EPropertyType arg1TypeCode = EPropertyType.Unknown, string arg1TypePath = null,
EPropertyType arg2TypeCode = EPropertyType.Unknown, string arg2TypePath = null)
{
ManagedUnrealMarshalerInfo marshalerInfo = new ManagedUnrealMarshalerInfo(
typeCode, typePath, arg1TypeCode, arg1TypePath, arg2TypeCode, arg2TypePath, marshalerType);
MethodReference method;
if (toNativeMarshalers.TryGetValue(marshalerInfo, out method))
{
return(method);
}
int paramCount = marshalerToNativeParamCountMin;
if (!codeSettings.MinimalMarshalingParams || ManagedUnrealTypeInfo.MarshalerRequiresNativePropertyField(typeCode))
{
paramCount = marshalerToNativeParamCount;
}
Type type = ManagedUnrealTypeInfo.GetTypeFromMarshalerInfo(marshalerInfo);
if (type != null)
{
if (typeCode == EPropertyType.Struct && !type.IsGenericType)
{
// Struct marshaling methods are generated, find the existing type by path
TypeDefinition typeDef = typeDef = assembly.MainModule.GetType(type.FullName);
foreach (MethodDefinition methodDef in typeDef.Methods)
{
if (methodDef.Name == "ToNative" && methodDef.IsPublic && methodDef.IsStatic && methodDef.Parameters.Count == paramCount)
{
method = methodDef;
break;
}
}
}
else
{
foreach (System.Reflection.MethodInfo methodInfo in type.GetMethods())
{
if (methodInfo.Name == "ToNative" && methodInfo.IsPublic && methodInfo.GetParameters().Length == paramCount &&
(methodInfo.IsStatic || ManagedUnrealTypeInfo.IsCollectionType(typeCode)))
{
method = assembly.MainModule.ImportEx(methodInfo);
break;
}
}
}
}
if (method != null)
{
toNativeMarshalers.Add(marshalerInfo, method);
}
if (method == null)
{
throw new RewriteException(typePath, "Failed to get ToNative marshaler");
}
return(method);
}